import * as actionTypes from "./constants"
import {Map} from "immutable"

const  defaultState=Map({
    topBanners:[],
    hotRecommends:[],
    newAlbums:[],

    upRanking: {},
    newRanking: {},
    originRanking: {},
})

function  reducer(state=defaultState,action){
switch(action.type){
    case actionTypes.CHANGE_TOP_BANNERS:
        return state.set('topBanners', action.topBanners)
    case actionTypes.CHANGE_HOT_RECOMMEND:
        return state.set('hotRecommends', action.hotRecommends)
    case actionTypes.CHANGE_NEW_ALBUM:
        return state.set("newAlbums",action.newAlbums)

    case actionTypes.CHANGE_UP_RANKING:
        return state.set("upRanking", action.upRanking);
    case actionTypes.CHANGE_NEW_RANKING:
        return state.set("newRanking", action.newRanking);
    case actionTypes.CHANGE_ORIGIN_RANKING:
        return state.set("originRanking", action.originRanking);
    default:
        return state
}
}
export default reducer